FIVE LONG-PERIOD EXTRASOLAR PLANETS IN ECCENTRIC ORBITS FROM THE MAGELLAN PLANET SEARCH PROGRAM

被引：18

作者：

Arriagada, Pamela ^{[1
]}

Butler, R. Paul ^{[2
]}

Minniti, Dante ^{[1
]}

Lopez-Morales, Mercedes ^{[2
]}

Shectman, Stephen A. ^{[3
]}

Adams, Fred C. ^{[4
]}

Boss, Alan P. ^{[2
]}

Chambers, John E. ^{[2
]}

机构：

[1] Pontificia Univ Catolica Chile, Dept Astron, Santiago 22, Chile

[2] Carnegie Washington, Dept Terr Magnetism, Washington, DC 20015 USA

[3] Carnegie Observ, Pasadena, CA 91101 USA

[4] Univ Michigan, Dept Astron, Ann Arbor, MI 48109 USA

来源：

ASTROPHYSICAL JOURNAL | 2010年 / 711卷 / 02期

关键词：

planetary systems; stars:; individual; (HD; 86226; HD; 129445; 164604; 175167; 152079); GIANT PLANETS; SOLAR PLANETS; SUPER-EARTH; MASS; EVOLUTION; STARS; MIGRATION; ORIGIN; PROTOPLANETS; COMPANIONS;

D O I：

10.1088/0004-637X/711/2/1229

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Five new planets orbiting G and K dwarfs have emerged from the Magellan velocity survey. These companions are Jovian-mass planets in eccentric (e >= 0.24) intermediate- and long-period orbits. HD 86226b orbits a solar metallicity G2 dwarf. The M-P sin i mass of the planet is 1.5 M-JUP, the semimajor axis is 2.6 AU, and the eccentricity is 0.73. HD 129445b orbits a metal-rich G6 dwarf. The minimum mass of the planet is M-P sin i = 1.6 M-JUP, the semimajor axis is 2.9 AU, and the eccentricity is 0.70. HD 164604b orbits a K2 dwarf. The M-P sin i mass is 2.7 M-JUP, the semimajor axis is 1.3 AU, and the eccentricity is 0.24. HD 175167b orbits a metal-rich G5 star. The MP sin i mass is 7.8 M-JUP, the semimajor axis is 2.4 AU, and the eccentricity is 0.54. HD 152079b orbits a G6 dwarf. The M-P sin i mass of the planet is 3M(JUP), the semimajor axis is 3.2 AU, and the eccentricity is 0.60.

引用

页码：1229 / 1235

页数：7

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